Card-type terminal

1. A card-type terminal comprising: a tray which can be slid in and out freely with a memory card mounted; and a guide which helps the tray slide in and houses the tray, wherein the memory card is placed on the tray, the tray is slid into the guide, and thereby the memory card is installed in the card-type terminal, and wherein the tray comprises a holder attached to a substantially middle point of a forward-end center section of the tray which secures, to the tray, a substantially middle point of a forward-end center section of the memory card mounted on the tray along an insertion direction of the tray, and an elastic restraining piece attached to a substantially middle point of a rearward-end center section of the tray, which secures, to the tray, a substantially middle point of a backward-end center section of the memory card mounted on the tray along the insertion direction of the tray.

2. The card-type terminal according to claim 1 , comprising: a metal cover which covers the guide, wherein the guide comprises a pair of guards which demarcate a tray loading slot by sticking out from an edge of the metal cover and extend like cantilever beams from both sides of a width orthogonal to the insertion direction of the tray toward a center of the width, forming enough space between the guards to allow the elastic restraining piece to enter.

3. The card-type terminal according to claim 1 , comprising a misinsertion prevention mechanism which prevents the tray from being inserted upside down into the guide.

4. The card-type terminal according to claim 3 , wherein the misinsertion prevention mechanism consists of convex portions provided on either the tray or the guide and concave portions which are provided in the other and fit around the convex portion.

5. The card-type terminal according to claim 1 , comprising a safety catch which prevents the tray from falling off when the tray is drawn from the guide.

6. The card-type terminal according to claim 5 , wherein the safety catch consists of convex portions provided on either the tray or guide and concave portions which are provided in the other, extend in the insertion direction of the tray, slidably fit around the convex portions, and have an end wall brought into contact with the convex portions when the tray is pulled out from the guide.

7. The card-type terminal according to claim 1 , wherein: the tray has a tray-side restraining member which restrains the tray in the guide when the tray is inserted in the guide; and the guide has a guide-side restraining member which engages with the tray-side restraining member when the tray is inserted in the guide and a control lever which disengages the guide-side restraining member from the tray-side restraining member in response to operation of an exposed control end of the control lever.

8. The card-type terminal according to claim 7 , wherein the tray-side restraining member is a concave portion formed in a lateral wall of the tray and the guide-side restraining member is a convex portion which is formed on that part of the tray which corresponds to the concave portion and fits in the concave portion.